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參數(shù)資料
| 型號(hào)： | AM79C960KC |
| 廠商： | ADVANCED MICRO DEVICES INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | PCnetTM-ISA Single-Chip Ethernet Controller |
| 中文描述： | 2 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP120 |
| 封裝： | CARRIER RING, PLASTIC, QFP-120 |
| 文件頁(yè)數(shù)： | 34/127頁(yè) |
| 文件大小： | 814K |
| 代理商： | AM79C960KC |
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P R E L I M I N A R Y
AMD
1-376
Am79C960
16907B-7
Initialization
Block
24-Bit Base Address
Pointer to
Initialization Block
IADR[15:0]
IADR[23:16]
RES
CSR1
CSR2
TDRA[15:0]
RES
MODE
PADR[15:0]
PADR[31:16]
PADR[47:32]
LADRF[15:0]
LADRF[31:16]
LADRF[47:32]
LADRF[63:48]
RDRA[15:0]
RES
RLEN
RDRA[23:16]
TLEN
TDRA[23:16]
RCV
Buffers
RX DESCRIPTOR RINGS
1st desc.
start
RMD0
RMD1RMD2
RMD3
RCV Descriptor
Ring
N
N
N
N
2nd desc.
start
RMD0
XMT
Buffers
RX DESCRIPTOR RINGS
1st desc.
start
TMD0
TMD1
TMD2
TMD3
RX DESCRIPTOR RINGS
XMT Descriptor
Ring
M
M
M
M
2nd desc.
start
TMD0
Data
Buffer
1
Data
Buffer
2
Data
Buffer
N
Data
Buffer
1
Data
Buffer
2
Data
Buffer
M
16907B-7
Initialization Block and Descriptor Rings
Polling
When there is no channel activity and there is no pre- or
post-receive or transmit activity being performed by the
PCnet-ISA controller, then the PCnet-ISA controller will
periodically poll the current receive and transmit de-
scriptor entries in order to ascertain their ownership. If
the DPOLL bit in CSR4 is set, then the transmit polling
function is disabled.
A typical polling operation consists of the following: The
PCnet-ISA controller will use the current receive de-
scriptor address stored internally to vector to the
appropriate Receive Descriptor Table Entry (RDTE). It
will then use the current transmit descriptor address
(stored internally) to vector to the appropriate Transmit
Descriptor Table Entry (TDTE). These accesses will be
made to RMD1 and RMD0 of the current RDTE and
TMD1 and TMD0 of the current TDTE at periodic polling
intervals. All information collected during polling activity
will be stored internally in the appropriate CSRs. (i.e.
CSR18–19, CSR20–21, CSR40, CSR42, CSR50,
CSR52). UnOWNed descriptor status will be internally
ignored.
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| AM79C960KCW | PCnetTM-ISA Single-Chip Ethernet Controller |
| AM79C961AKCW | PCnet ⑩-ISA II Jumperless, Full Duplex Single-Chip Ethernet Controller for ISA |
| AM79C961AKC | PCnet ⑩-ISA II Jumperless, Full Duplex Single-Chip Ethernet Controller for ISA |
| AM79C961A | PCnet ⑩-ISA II Jumperless, Full Duplex Single-Chip Ethernet Controller for ISA |
| AM79C961AKIW | PCnet⑩-ISA II Jumperless, Full Duplex Single-Chip Ethernet Controller for ISA |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM79C960KC/W | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN Node Controller |
| AM79C960KCW | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:PCnetTM-ISA Single-Chip Ethernet Controller |
| AM79C961 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Am79C961 - PCnet-ISA+ Jumperless Single-Chip Ethernet Controller for ISA |
| AM79C961/AM79C961A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Using the Am79C961/Am79C961A (PCnet-ISA+/PCnet-ISA II) Survival Guide? 134KB (PDF) |
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